JPS6244325A - Mounting method and device for ring parts onto outercircumference of pillar material - Google Patents

Abstract

PURPOSE:To enable simultaneous handling of pillar materials by supporting pillar material horizontally then switching from outercircumferential supporting of guide member having enlarged inclination outercircumference at the pillar material side to the axial direction supporting and inserting a ring part into the pillar material thereby mounting the ring smoothly under horizontal condition. CONSTITUTION:Upon fitting of a seal mat 17 into the groove 40 of positioning table 25, catalyst 3 is positioned on a receiving member 37 and mounting table while simultaneously a mesh ring 16 is mounted on respective holding chips 88a-88c of press mechanism 30. Then an arm 42 is rotated to wind the mat 17 over the catalyst 3 by means of both stopper clicks 43 and to adhere the opposite ends. While the holding chips 88d, 88e of holding mechanism 30 will contact against the ring 16 to press inward thus to penetrate a rod 122 through the ring 16 and to approach to the guide mechanism 28 side thereby the arm 31 at the tip is inserted into an insertion hole 67 to move the guide member 27 to the catalyst 3 side thus to support the guide mechanism 28 on the arm 31 from axial direction. Then the supporter 63 is released to enlarge the ring 16 through the inclined outer face 56 by the motion of holding mechanism 30 oand to fit over the fitting section.

Description

DETAILED DESCRIPTION OF THE INVENTION A0 OBJECTS OF THE INVENTION +1) Industrial Field of Application The present invention relates to a method and apparatus for attaching a ring-shaped component to the outer periphery of a columnar object.

(2) Conventional technology Conventionally, when assembling a catalytic converter, for example, when attaching a mesh ring to the outer periphery of a columnar catalyst to be interposed between it and the inner surface of a casing, it was necessary to Generally, a guide member is disposed above, and the mesh ring is guided by the guide member and fitted onto the outer periphery of the catalyst from above.

(3) Problems to be Solved by the Invention However, in the conventional device described above, it is necessary to pass a mesh ring around the outer periphery of the guide member in advance.

Furthermore, in the case where the columnar object is subjected to other processing, for example, when a sealing mat is wrapped around the catalyst, it is necessary to hold the columnar object horizontally and attach the ring-shaped component.

The present invention has been made in view of the above circumstances, and makes it possible to attach a ring-shaped component by making the columnar object almost horizontal, thereby making it unnecessary to pass the ring-shaped component through the guide member in advance, and also making it possible to attach the ring-shaped component to the columnar object It is an object of the present invention to provide a method and apparatus for attaching a ring-shaped component to the outer periphery of a columnar object, which allows other processes to be carried out simultaneously.

B6 Structure of the Invention (1) Means for Solving the Problems According to the method of the present invention, a columnar object is positioned and supported with its axis substantially horizontal, and the guide has an inclined outer surface that becomes larger toward the columnar object. After supporting the member from its side and arranging it adjacent to the columnar object on the same axis, and placing the ring-shaped component to be installed on the opposite side of the guide member to the columnar object on the same axis, the guide member is moved in the axial direction. While supporting from one side, the support of the guide member from the side is released, and the ring-shaped part is guided and pressed by the sloped outer surface of the guide member to fit into the part to be attached to the columnar object. After releasing the pressed state, the guide member is supported from the sides and the support from one side in the axial direction is released.

The device of the present invention also includes a positioning table for positioning and placing the columnar object with the axis line substantially horizontal with the attachment site floating; and a guide member having an inclined outer surface that becomes larger toward the columnar object. a guide mechanism; a clamp mechanism capable of supporting the guide mechanism from the side in order to position the guide member on the same axis as the columnar object at a position adjacent to the columnar object on the positioning table; A support arm movable in the axial direction to support it from one side; capable of holding the ring-shaped part on the same axis on the opposite side of the guide mechanism from the columnar object, and movable to press the ring-shaped part toward the columnar object; a holding and pressing mechanism;

(2) Effect In the method of the present invention, prior to mounting the ring-shaped part, the support from the side of the guide member is released and the guide member is supported from one side in the axial direction. It becomes possible to press the Further, since the ring-shaped component is guided by the guide member and moves toward the columnar object, the ring-shaped component can be smoothly attached to the columnar object.

In the device of the present invention, the guide member is supported by the clamp mechanism and the support arm, so that it is possible to switch between supporting from the side and supporting from one side in the axial direction, thereby preventing interference with the movement of the ring-shaped component. The holding and pressing mechanism is moved to attach the ring-shaped component to the outer periphery of the columnar object without causing any problems.

(3) Example Hereinafter, an example in which the present invention is applied to a catalytic converter assembly device will be explained with reference to the drawings.
In the figure, a catalytic converter 1 is installed, for example, in the middle of an exhaust system of a vehicle internal combustion engine, and a catalyst 3 as a columnar object is housed in a casing 2. The catalysts 3 have a columnar cross-sectional shape, for example, an ellipse, and are arranged in pairs in the casing 2 at intervals in the axial direction. As the exhaust gas flows through these catalysts 3, harmful components such as HC, Co, and NOx in the exhaust gas are removed by promoting oxidation and reduction reactions.

The casing 2 includes a stainless steel plate shell 5 having a first end cone 4 at one end and a stainless steel plate second end cone 6 welded to the other end of the stainless steel plate shell 5. A flange 7.8 for joining is fixed to the middle of the exhaust pipe.

The shell 5 is formed into a cylindrical shape with an elliptical cross section, and is formed by welding together a pair of shell halves 9 and 10 that are divided into two along the axial direction over the entire length. . Joint flanges 11 and 12 that abut each other are provided at both ends in the circumferential direction of both shell halves 9° 10, and the shell 5 is formed by abutting and welding these joint flanges 11° and 12. .

A shell 5 formed by joining both shell halves 9 and 10 has a first end cone 4 connected to one end of a cylindrical portion 13 via a shoulder 14, and a shoulder at the other end of the cylindrical portion 13. A second end cone 6 having a section 15 is welded together.

The outer peripheral surface of each catalyst 3 and the cylindrical part 13 in the casing 2
A mesh ring 16 and a seal mat 17, each serving as a ring-shaped component, are interposed between the mesh ring 16 and the inner surface. The mesh ring 16 is formed into an elastic ring shape by knitting thin wires made of stainless steel into a mesh shape, and serves to prevent the catalyst 3 from being destroyed by vibration.

Further, the seal mat 17 is wrapped around the outer periphery of the catalyst 3 and functions to prevent gas from flowing between the catalyst 3 and the cylindrical portion 13.

A ring-shaped end protection member 18 made of the same material as the mesh ring 16 is interposed between the ends of each catalyst 3 that are separated from each other and the casing 2 . The cross-sectional shape of this end protection member 18 is an abbreviated shape, and its inner surface abuts the outer circumferential surface of the end portion of the catalyst 3 and the end surface, and its outer surface contacts the inner surface of the cylindrical portion 13 and the shoulder portion 14 or 15. come into contact with

End protection members 19 made of the same material and in the same shape as the end protection member 18 are in contact with the mutually adjacent ends of both catalysts 3, and the outer surfaces of these end protection members 19 are A ring-shaped protector 20 having an abbreviated cross section is interposed between the inner surface of the cylindrical portion 13 of the casing 2 and the inner surface of the cylindrical portion 13 of the casing 2 .

Furthermore, both protectors 20 are brought into contact with each other.

The casing 2 also has a plurality of inwardly recessed portions 21 at corresponding portions between the mesh ring 16, the seal mat 17, the end protection member 18, 19, and the protector 20 in order to determine their respective positions. are provided all around.

When assembling such a catalytic converter 1, the catalyst 3
An insert assembly 22 comprising a mesh ring 16 and a seal mat 17 is prepared in advance.

FIGS. 2 and 3 show an assembly device for assembling the interpolation assembly 22, and this assembly device 23 is arranged symmetrically in pairs on the base 24. It is possible to assemble 2 interpolation aggregates 22 at the same time.

The assembly device 23 includes a positioning table 25 for positioning and placing the catalyst 3 with its axis substantially horizontal, a winding mechanism 26 for wrapping the seal mat 17 around one end of the catalyst 3, and a mechanism 26 on the positioning table 25 for wrapping the seal mat 17 around one end of the catalyst 3. A guide mechanism 28 that includes a guide member 27 arranged on the same axis as the catalyst 3, and a clamp mechanism 2 that can release the supported state and support the guide member 27 from the side.
9 and the base 24 while elastically holding the mesh ring 16.
A holding/pressing mechanism 30 movable above, a support arm 31 movable on the same axis as the guide member 27 to support one end of the guide member 27, and driving the holding/pressing mechanism 30 and the support arm 31. A drive mechanism 32 is provided.

In FIGS. 4 and 5, the positioning table 25 is fixed near the center of the base 24 in order to position and mount the catalyst 3 so that the attached portion 3a of the mesh ring 16 floats. In other words, the positioning table 25 includes a column 35 erected on the base 24, and a contact plate 36 fixed on the top of the column 35 to face the end surface of the catalyst 3 on the side around which the seal pine 1-17 is wrapped. A receiver is fixed to the support column 35 to receive the outer circumferential surface of the lower half of the catalyst 3 at the part where the seal mat 17 is wrapped.
The support member 38 is engaged with the upper edge of the support member 37 to prevent the catalyst 3 from floating up on the member 37.

The receiver member 37 has a curved receiver surface 39 corresponding to approximately half the outer surface of the catalyst 3, and a groove 40 into which the seal mat 17 can be fitted is provided in the receiver surface 39 and opens upward. It will be done.

In this positioning stand 25, the receiver of the member 37 is located on the surface 39.
The catalyst 3 is placed on the catalyst 3 and the holding member 38 is engaged with the upper edge of the end of the catalyst 3, and the catalyst 3 is positioned with its axis substantially horizontal.

The winding mechanism 26 has a support plate 41 erected on the base 24 facing the support 35 below the support member 37, and the support 35.
and a pair of rotating arms 42 that are rotatably supported between the support plates 41 , presser claws 43 fixed to the ends of the rotating arms 42 , the support column 35 and the support plate 41
A swinging cylinder 44 supported by the base 24 with an axis extending vertically therebetween, and a connecting plate 4 connected to the upper end of a piston 45 extending upward from the upper end of the swinging cylinder 44.
6, both ends of the connecting plate 46 and each of the rotating arms 42
and links 47 that connect the intermediate portions of each.

Each rotating arm 42 is basically bent in an L-shape, and its base end is located below the member 37 between the column 35 and the support plate 41, and the receiver is parallel to the catalyst 3 on the member 37. It is rotatably supported by a support shaft 48 having an axis. Further, the presser pawl 43 has a presser surface 49 that is curved to correspond to the upper outer surface of the catalyst 3 on the member 37, and this presser surface 49 has a groove 50 corresponding to the a40 of the member 37. provided.

One end of a link 47 is connected to the intermediate bent portion of each rotating arm 42 via a pin 51 parallel to the support shaft 48, and the other end of the link 47 is connected to a connecting plate via a pin 52 parallel to the pin 51. It is connected to both ends of 46.

In the mechanism 26, such winding is performed on the swing cylinder 44.
Due to the expansion and contraction operation of , each rotating arm 42 rotates between a state in which the presser claw 43 is brought into contact with the catalyst 3 and a state in which the presser claw 43 is retracted to the side of the catalyst 3 as shown by the chain line in FIG. do. Moreover, when the seal mat 17 is fitted into the groove 40 of the member 37, both ends of the seal mat 17 extend from the member 37 to both sides, and the seal mat 1
The presser pawl 4 in the retracted state is located below the extending portion of 7.
3 is located. Therefore, when each rotating arm 42 is rotated so that the presser pawl 43 swings toward the catalyst 3 side from the retracted state, the extending portion of the seal mat 17 moves into the groove 5 of the presser pawl 43.
The presser claw 43's presser surface 49
When the seal mat 17 comes into contact with the outer surface of the catalyst 3, the seal mat 17 is wrapped around the entire circumference of the catalyst 3. Then, by bonding both ends of the seal mat 17 with adhesive tape 53 or the like, the wrapping of the seal mat 17 is completed.

In FIGS. 6 and 7, the guide mechanism 28 includes a guide member 27 and a support 63 fitted to the guide member 27 so as to be able to move relative to the guide member 27. are arranged adjacent to and on the same axis. Guide member 27
The receiver has an elliptical cross-sectional shape, and the receiver has an inclined outer surface 56 that becomes larger toward the catalyst 3 side of the member 37, and has a relatively large-diameter hole 5 therein.
7 concentrically. At the end of the guide member 27 on the catalyst 3 side,
A closing plate 58 that closes the open end of the hole 57 is fixed by a screw member 59, and an elastic plate 60 that can come into contact with the end surface of the catalyst 3 is attached to this closing plate 58.

At the open end of the hole 57 on the side opposite to the catalyst 3, an inner flange 61 that protrudes radially inward is provided over the entire circumference, and this inner flange 61 forms a sliding hole 62 concentric with the hole 57. . A cylindrical support 63 is slid into the sliding hole 62, and the tip of the support 63, which has protruded into the hole 57, is connected to the hole 5.
An outer flange 64 extending radially outward to slide against the inner surface of 7 is provided over the entire circumference.

The support body 63 and the guide member 27 are movable relative to each other in the axial direction, and the support body 63 is supported by the clamp mechanism 29 or the support arm 31. Therefore, the support 63
is in a fixed position, and the guide member 27 is movable relative to the support 63 in the axial direction. Furthermore, a spring 65 is provided between the inner flange 61 and the outer flange 64 to bias the guide member 27 away from the support member 63 in a direction that separates them, that is, in a direction that moves the guide member 27 away from the catalyst 3 on the support member 37. It is surrounded and interposed.

In order to support the support body 63 by the clamp mechanism 29,
An annular groove 66 that becomes narrower toward the bottom is provided on the outer surface of the portion of the support 63 that projects outward from the sliding hole 62 . Further, a pair of insertion holes 67 into which the support arms 31 can be inserted are bored in the support body 63 in parallel to each other over the entire length thereof.

Corresponding to the ends of the insertion holes 67 on the closing plate 58 side, the support body 63 has holes projecting at right angles to the various through holes 67;
The pressing arms 68 are supported so as to be rotatable between a state in which they are parallel to the various through holes 67 and protrude toward the closure vi 58 side. Moreover, each pressing arm 68 is biased by a spring (not shown) toward the side protruding perpendicularly into the insertion hole 67, so that when each pressing arm 68 is forcibly rotated by the support arm 31, each pressing arm 68 The arm 68 is the occlusion plate 5
8 , the guide member 27 is moved toward the catalyst 3 against the spring force of the spring 65 .

In FIG. 8, the clamp mechanism 29
It is disposed on the side of the support body 63 at a position corresponding to the annular groove 66 . That is, the clamp mechanism 29 includes a support frame 70 that is fixed to the base 24 so as to be tilted upward as it moves away from the support body 63 on the side of the support body 63, and a support frame 70 that is fixed to the support frame 70. A moving body 72 that can move along a pair of guide doors 1, and a piston 73 are mounted on the moving body 72.
A moving cylinder 74 connected to and fixed to the support frame 70
, a frame 75 provided on the moving body 72 , and a support 63
a pair of opening/closing arms 76 that are rotatable around an axis parallel to the axis of the frame 75 and supported by the frame 75;
a clamping claw 77 fixedly attached to the tip of the opening/closing cylinder 78 fixedly attached to the frame 75;
A link 8 connects both ends of the connecting plate 80 connected to the piston 79 of No. 8 and the end of each opening/closing arm 76.
1.

The moving body 72 reciprocates along both guide rods 71 in accordance with the expansion and contraction of the moving cylinder 74.

Therefore, the opening/closing arms 76 supported by a frame 75 fixed to the movable body 72 are in a state where the clamping claws 77 clamp the support body 63 from above and below, and a state in which the clamping claws 77 are retracted diagonally above the support body 63. It rotates back and forth between the two states.

When the opening/closing cylinder 78 is expanded or contracted, both opening/closing arms 7
6 is operated to open and close, and when both opening and closing arms 76 are closed at positions corresponding to the support body 63, each clamping claw 77 fits into the annular groove 66, and the support body 63 is clamped from both sides, whereby the guide member 27 is also supported.

Further, a mounting table 82 is integrally fixed to the lower clamping claw 77 . This mounting table 82 supports the catalyst 3 on the member 37.
When the supporting body 63 is held between the holding claws 77, the mounting table 82 comes into contact with the lower surface of the end of the catalyst 3 on the guide member 27 side and supports the catalyst 3. Further, when the support body 63 is released from being held by both the holding claws 77, the mounting table 82
is also evacuated and the support for the catalyst 3 is released.

Referring also to FIGS. 9, 10, and 11, the holding and pressing mechanism 30 is disposed on the opposite side of the catalyst 3 with respect to the guide mechanism 28 and is movable along the axis of the catalyst 3. .

That is, the holding and pressing mechanism 30 includes a moving plate 85 connected to the driving mechanism 32, and a substrate fixed to the moving plate 85 and having an opening 86 through which the guide member 27 can be inserted as the moving plate 85 moves. 87 and the board 870 guide mechanism 3
A plurality of, for example, three holding pieces 88a, 88b, and 88C arranged and supported along the periphery of the opening 86 on the 0 side, and a pair of holding arms 89 rotatably supported on the substrate 87;
Holding piece 8 supported at the tip of each holding arm 89
8d and 88e, a holding cylinder 90 which has an axis extending up and down to rotate both holding arms 89 and is supported by the moving plate 85, and a plurality of holding cylinders 90 supported by the base plate 87 along the periphery of the opening 86. For example, six pressing plates 91 are provided.

Each of the holding pieces 88a to 88e is provided with a holding surface 92 that is curved to correspond to the outer circumferential surface of the mensch ring 16, and the mesosure ring 16 is held by these retaining surfaces 92. That is, the three holding pieces 88a to 88c are supported by the substrate 87 in correspondence with the outer peripheral surface of the lower half of the mesh ring 16. Support protrusions 93 are provided on the base plate 87 to correspond to the three holding pieces 882 to 88c, respectively, and each holding piece 88 is connected to the support protrusions 93 via a link mechanism 94.
a to 88c are each connected. For this reason, each holding piece 8
8a to 88c can approach and move away from the support protrusion 93.

Further, one end of a pair of guide rods 95 movably passing through the support protrusion 93 is fixed to each of the holding pieces 88a to 88c, and the support protrusion 93 is attached to the other end of the guide rod 95.
The connecting collars 96 that are engaged with each other are engaged with each other. Therefore, in each of the holding pieces 88a to 88c, the engaging collar 96 is connected to the supporting protrusion 93.
It is possible to separate from the support protrusion 93 to a position where it engages with the support protrusion 93.

Moreover, a spring 97 surrounding each kite rod 95 is interposed between the support protrusion 93 and each of the holding pieces 88a to 880, and each of the holding pieces 88a to 88C is spring-loaded in the direction away from the support protrusion 93. Forced.

Both holding arms 89 are formed in a substantially C-shape, and their base ends are attached to a support shaft 98 on the side surface of the board 87 on the guide mechanism 28 side.
It is rotatably supported by. Thereby, both the holding arms 89 can approach the meso-shring 16 placed on the holding surface 92 of each of the holding pieces 88a to 88c from both sides, or move away from the meso-shring 16.

A support protrusion 99 is provided at the tip of each holding arm 89, and similarly to the above-mentioned holding pieces 88a to 88C,
A guide rod 96 having a link mechanism 94 and an engaging collar 96
The holding pieces 88d and 88e are connected to the support protrusion 99 via the spring 97.

Therefore, when each holding arm 89 rotates close to the meso ring 16 side, the holding surface 92 of each holding piece 88d, 88e resiliently abuts against the upper outer surface of the meso ring 16.

In order to rotate each holding arm 89, one end of a link 101 is connected to the intermediate portion of each holding arm 89 via a pin 100 parallel to the support shaft 98. On the other hand, a connecting plate 103 is connected to the tip or upper end of the piston rod 102 in the holding cylinder 90, and the other end of the link 101 is connected to a pin parallel to the pin 100 at both ends of the connecting plate 103. 104, respectively. Therefore, each holding arm 89 opens and closes in response to the expansion and contraction of the holding cylinder 90.

Each pressing plate 91 has a substantially U-shaped cross section, and is fitted into the periphery of the opening 86 in the substrate 87, respectively. Further, on the side surface of the substrate 87 on the opposite side to the arrangement position of each of the holding pieces 88a to 88e, there is a
A clamping plate 105 that movably clamps each pressing plate 91 is fixed by a plurality of bolts 1.6. This clamping plate 105 has a through hole 107 sufficient for inserting the catalyst 3, and each bolt 106 is inserted between each pressing plate 91 and the substrate 87.
is screwed onto.

Further, an endless spring 108 is wound around the outer periphery of each pressing plate 91, and each pressing plate 91 is connected to the substrate 8.
7 and the holding plate 105 in an inwardly biased state. Moreover, one side surface 91a of each pressing plate 91 is the end surface of the mensch ring 16 held by the holding pieces 882 to 88e, and can contact and press the mensch ring 16.

Referring also to FIG. 12 and FIG. 13, the drive mechanism 3
2 is arranged on the base 24 on the opposite side of the guide mechanism 28 with respect to the holding and pressing mechanism 30. This drive mechanism 32 has a support arm 31 attached to a support frame 111 fixed to the base 24.
a first driving cylinder 112 for driving, a holding,
Second driving cylinder 11 for driving the pressing mechanism 30
3 are supported and fixed with mutually parallel and horizontal axes.

The support frame 111 has side plates 114 and 115 facing each other at intervals along the axial extension line of the catalyst 3, and a bottom plate 116.
The bottom plate 116 is fixed on the base 24. Moreover, the upper part of the support frame 111 is covered with a cover 117.

The first driving cylinder 112 is fixed and supported at the upper center of one side plate 114 with a horizontal axis, and the piston 118 of this first driving cylinder 112 is attached to the side plate 114.
14 in a movable manner and enters into the support frame 111. On the other hand, a pair of guide rods 119 having axes parallel to the first driving cylinder 112 are supported on both lower sides of the side plates 114 and 115 so as to be movable along the axial direction. A cylindrical sleeve 12 is disposed at an intermediate portion of each guide rod 119 within the support frame 111 so as to be relatively movable in the axial direction.
0 is fitted, and the tip of the piston 118 is fixed to the center of a connecting member 121 that interconnects both sleeves 120. Therefore, the first driving cylinder 11
2, the connecting member 121 connects both guide rods 119.
Move guided by.

A pressing rod 122 having an axis on the extension line of the axis of the piston 118 is fixed to the connecting member 121,
A pair of support arms 31 are fixed to the tip of this pressing rod 122 in parallel with each other.

A stepped portion 31a facing the forward side is provided at the base of each of the support arms 31, and each support arm 31 passes through the holding and pressing mechanism 30 to support the support body 63 in the guide mechanism 28.
When inserted into the insertion hole 67 of the support body 63, each step portion 31a comes into contact with the end surface of the support body 63.

In order to restrict the amount of movement of the support arm 31, one sleeve 120 has an arm 1 that protrudes outward from the support frame 111.
A pair of dogs 124 are fixed to the tips of the arms 123 at intervals in a direction parallel to the axis of the guide rod 119.

On the other hand, a pair of limit switches 125 are fixedly installed on the base 24 at positions spaced apart in a direction parallel to the axis of the guide rod 119, and are activated in accordance with the movement of the dog 124. Dog 124 and limit switch 12
5 restricts the amount of expansion and contraction of the first driving cylinder 112, that is, the amount of movement of the support arm 31.

One ends of both guide rods 119 movably pass through the side plate 115 and are fixed to the movable plates 85 in the holding and pressing mechanism 30, respectively. Therefore, as the guide rod 119 moves, the holding and pressing mechanism 30 also moves.

In order to drive these guide rods 119, the push rod 1
A second driving cylinder 113 is supported and fixed to the support frame 111 below the cylinder 22 . This second driving cylinder 1
The thirteen pistons 126 are connected to the moving plate 85, and therefore both guide rods 119 are connected to the piston 126 of the second driving cylinder 113 via the moving plate 85.

On the other hand, the other ends of both guide rods 119 movably penetrate the side plate 114 and protrude outward.
The protruding ends of are connected to each other via a connecting plate 127.

A support arm 128 is suspended downward from the center of the connecting plate 127, and each guide rod 1 is attached to the lower end of the support arm 128.
A pair of dogs 129 are fixed at intervals in a direction parallel to the dogs 129 . Further, both guide rods 11 are provided on the outer surface of the side plate 114.
A support plate 130 extending horizontally outward below the point 9
A pair of glue mint switches 131, which are activated in accordance with the movement of each dog 129, are fixed to the support plate 130 at a distance from each other. The action of these dogs 129 and limit switch 131 regulates the amount of expansion and contraction of the second driving cylinder 113, that is, the amount of movement of both guide rods 119 and the holding and pressing mechanism 30.

Although the configuration of one assembly device 23 has been described in detail above, the other assembly device 23 is also configured in exactly the same way, and both assembly devices 23 are arranged symmetrically on the base 24. be done.

Next, the operation of this embodiment will be explained with reference to FIG. 14. When assembling the catalytic converter 1, when assembling the insert assembly 22, first, as shown in FIG. In the mechanism 26, the swinging cylinder 44 is contracted to keep the rotating arm 42 open, and the presser claw 43 is retracted to the side. In addition, the clamp mechanism 29
Now, the opening/closing cylinder 78 is contracted to close the opening/closing arm 76, and the support body 63 of the guide mechanism 28 is gripped by the gripping claws 77. Furthermore, the first and second
The driving cylinders 112 and 113 are contracted, so that the support arm 31 is separated from the guide mechanism 28, and the holding and pressing mechanism 30 is also separated from the guide mechanism 28. Further, in the holding and guiding mechanism 30, the holding cylinder 90 is contracted and both holding arms 89 are open, so the holding pieces 88d and 88e are retracted to the side.

Next, as shown in FIG. 14 (bl), after fitting the seal mat 17 into the groove 40 of the member 37, the receiver in the positioning table 25 positions and places the catalyst 3 on the member 37 and the mounting table 82. At the same time, a meso ring 1 is placed on each of the holding pieces 88a to 88c of the holding and pressing mechanism 30.
Place 6.

Thereafter, as shown in FIG. 14(C), the winding is performed by the mechanism 26.
The swinging cylinder 44 is extended to rotate the swinging arm 42 toward the catalyst 3, and the sealing mat 1 is moved by both presser claws 43.
7 is picked up and wrapped around the catalyst 3, and both ends of the seal mat 17 are adhered to each other with an adhesive tape 53.

On the other hand, in the holding and pressing mechanism 30, the holding cylinder 90 extends and both holding arms 89 rotate. As a result, the holding pieces 88d and 88e come into contact with the upper outer surface of the mesh ring 16, and the holding pieces 88a to 88e
It is pressed and held inward by e.

At the stage when the meso-shring 16 is held by the holding and pressing mechanism 30, the first driving cylinder 11 in the driving mechanism 32
2 is extended, and the pressing rod 122 passes through the mesh ring I6 as shown in FIG.
Move closer to the 8th side. As a result, both support arms 31 at the tip of the pressing rod 122 are connected to the support body 6 in the guide mechanism 28.
The guide member 27 is inserted into the insertion hole 67 of the catalyst 3, and the press arm 68 is pushed by the tip of the support arm 31, and the guide member 27 is inserted into the catalyst 3.
The catalyst 3 is sandwiched between the contact plate 36 and the elastic plate 60 of the guide member 27.

In this way, the guide mechanism 28 is supported by the support arm 31 from one axial direction thereof. At this time, since lateral support by the clamp mechanism 29 is not required, the clamp mechanism 29 extends the opening/closing cylinder 78 to open both opening/closing arms 76 and releases the support of the support body 63 by the clamping claws 77. .

Moreover, as the moving cylinder 74 contracts,
Both clamping claws 77 are retracted to a position where they do not interfere with the movement of the holding and pressing mechanism 30, as will be described later.

Next, as shown in FIG. 14(e), the second driving cylinder 113 of the driving mechanism 32 is extended, and the holding and pressing mechanism 30 is moved toward the catalyst 3 by both guide rods 119. By this movement of the holding and pressing mechanism 30, the mensch ring 16 moves toward the catalyst 3 while being gradually expanded outward by the inclined outer surface 56 of the guide member 27. Moreover, at this time, each pressing plate 91 that presses the menshu ring 16 is slidably supported between the base plate 87 and the clamping plate 105, so that the menshu ring 16 is pressed while being enlarged by the inclined outer surface 56 of the guide member 27. Finally, the meso ring 16 is fitted to the mounting portion 3a of the catalyst 3.

After fitting the meso-shring 16 to the catalyst 3, FIG.
+-Figure 14 (C1-Figure 14 (b) → Figure 14 (a)
By carrying out the operation in reverse to that described above, it is possible to obtain an insert assembly 22 in which the mesh ring 16 and the seal mat 17 are attached to the catalyst 3. The catalytic converter 1 can be obtained by preparing a pair of these insert assemblies 22 and storing them in the casing 2 together with the end protection members 18, 19, the protector 20, and the like.

In the above embodiments, the catalytic converter 1 has been described in which a pair of catalysts 3 are arranged in tandem in a casing 2, but the present invention relates to a catalytic converter in which a single catalyst 3 is housed in a casing. Needless to say, it can be implemented as well. Further, the cross-sectional shape of the catalyst 3 is not limited to an ellipse, but may be circular or angular.

C1 Effects of the Invention As described above, according to the method of the present invention, a columnar object is positioned and supported with its axis substantially horizontal, and a guide member having an inclined outer surface that becomes larger toward the columnar object is supported from its side. After arranging the ring-shaped part to be mounted on the same axis on the opposite side of the guide member to the columnar object, the guide member is supported from one side in the axial direction and is placed adjacent to the columnar object on the same axis. Release the support of the guide member from
The ring-shaped component is guided and pressed by the sloped outer surface of the guide member to fit into the attachment part of the columnar object, and then, after releasing the pressure on the ring-shaped component, the guide member is supported from the side and the shaft is pressed. Since the support from one direction is released, it is possible to keep the columnar object almost horizontal and smoothly install the ring-shaped part, and it is also possible to perform other processes at the same time, such as wrapping a seal mat. .

The device of the present invention also includes a positioning table for positioning and placing the columnar object with the axis line substantially horizontal with the attachment site floating; and a guide member having an inclined outer surface that becomes larger toward the columnar object. A guide mechanism: a clamp mechanism capable of supporting the guide mechanism from the side in order to position the guide member on the same axis as the columnar object at a position adjacent to the columnar object on the positioning table; a clamp mechanism capable of supporting the guide mechanism from the side; A support arm movable in the axial direction to support it from one side; capable of holding the ring-shaped part on the same axis on the opposite side of the guide mechanism from the columnar object, and movable to press the ring-shaped part toward the columnar object; Since it includes a holding and pressing mechanism; the guide mechanism for guiding the ring-shaped part to the columnar object can be switched between supporting the ring-shaped part from the side and from one side in the axial direction, and holding the ring-shaped part. The holding and pressing mechanism can be smoothly moved without any trouble, and the ring-shaped component can be smoothly attached to the columnar object, thereby providing an apparatus that is optimal for carrying out the method of the present invention.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal sectional view of a catalytic converter, FIG. 2 is an overall side view of the assembly device, FIG. 3 is an overall plan view of the assembly device, and FIG. 5 is an enlarged longitudinal sectional view of the positioning table and the winding mechanism, FIG. 5 is a sectional view taken along the line V-V in FIG. 4, FIG. -■ line sectional view, Figure 8 is an enlarged line ■-■ line sectional view of Figure 3, Figure 9 is an enlarged view of Figure 3,
Figure 10 is a sectional view taken along the line X-X in Figure 9, and Figure 11 is a cross-sectional view of Figure 10.
12 is a large cross-sectional view taken along the line xn-xnn in FIG. 3; FIG. 13 is a cross-sectional view taken along the line xm-xm in FIG. 12; and FIG. 14 is an explanatory diagram of the operation. 3... Catalyst as a columnar object, 3a... Mounting site,
16...Mesh ring as a ring-shaped part, 25
... positioning base, 27 ... guide member, 28 ... guide mechanism, 29 ... clamp mechanism, 30 ... holding and pressing mechanism, 31 ... support arm, 32 ... drive mechanism,
56...1 Oblique external surface Fig. 4 Vl- Fig. 5 112 Fig. 6 T Fig. 7 Fig. 9 4 rφ Procedural amendment (self-imposed May 29, 1985)

Claims (2)

[Claims] (1) A columnar object is positioned and supported with its axis substantially horizontal, and a guide member having an inclined outer surface that becomes larger toward the columnar object is supported from the side and placed adjacent to the columnar object on the same axis. , after arranging the ring-shaped part to be mounted on the same axis on the opposite side of the columnar object with respect to the guide member,
The guide member is supported from one side in the axial direction, and the support of the guide member from the side is released, and the ring-shaped part is guided and pressed by the inclined outer surface of the guide member to fit into the part to be attached to the columnar object, and then A method for attaching a ring-shaped component to the outer periphery of a columnar object, which comprises supporting the guide member from the side and releasing support from one axial direction after releasing the pressure on the ring-shaped component. (2) a positioning table for positioning and mounting a columnar object with the axis line substantially horizontal with the attachment part floating; a guide mechanism comprising a guide member having an inclined outer surface that becomes larger toward the columnar object; a clamp mechanism capable of supporting the guide mechanism from the side so as to position the guide member on the same axis as the columnar object at a position adjacent to the columnar object on the positioning table;
A support arm movable in the axial direction to support the guide mechanism from one side of the guide mechanism; capable of holding the ring-shaped component on the same axis on the opposite side of the guide mechanism from the columnar object; A device for attaching a ring-shaped part to the outer periphery of a columnar object, comprising: a holding/pressing mechanism movable to press the ring-shaped part.